David Jaewon Oh
Runners are no strangers to injuries, especially common ones such as shin splints, pulled muscles, and stress fractures. But if you find that your foot is swollen and painful, especially the area under your ankle, you may be suffering from an injury known as peroneal tendonitis.
Tendonitis the inflammation of the tendon occurs when a tendon under chronic stress, or from injury.
The peroneal tendons are two tendons that run together on the outside of the foot and ankle. One attaches to the outside of the midfoot and the other tendon attaches to the bottom of the arch.